We trust Christ for our salvation because He is the only one who can fulfill all the requirements for our standing before God.
Christ's work is wholly sufficient for our salvation; He is the one who fulfills the law and the covenant's requirements. The necessity of trusting in Christ arises from the understanding that our own actions are insufficient for obtaining righteousness. As described in 2 Corinthians 5:21, Christ was made sin for us, that we might be made the righteousness of God in Him. This signifies that our hope hinges not on our merits but entirely on His work. The Sabbath and its observance highlight this need for grace, where we recognize our inability to 'earn' God's favor and instead rest in the perfect sacrifice of Jesus.
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